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Finding the Fourth Proportional to 61,435.68, 91,674.40 and 54,816.36

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Solution

The fourth proportional to 61,435.68, 91,674.40 and 54,816.36 is: 81,797.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,435.68 : 91,674.40 = 54,816.36 : x
  2. Step 2: Convert to fraction form
    61,435.68/91,674.40 = 54,816.36/x
  3. Step 3: Cross multiply
    61,435.68x = 91,674.40 × 54,816.36
  4. Step 4: Simplify right side
    61,435.68x = 5,025,256,913.18
  5. Step 5: Solve for x
    x = 5,025,256,913.18/61,435.68
  6. Step 6: Final answer
    x = 81,797.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.